DTC Troubleshooting
| DTC | Description |
|---|---|
| P0122 | TP Sensor A Circuit Low Voltage |
| P0123 | TP Sensor A Circuit High Voltage |
| P0222 | TP Sensor B Circuit Low Voltage |
| P0223 | TP Sensor B Circuit High Voltage |
| P1683 | Throttle Valve Default Position Spring Performance Problem |
| P1684 | Throttle Valve Return Spring Performance Problem |
| P2101 | Throttle Actuator System Malfunction |
| P2108 | Throttle Actuator Control Module Problem |
| P2118 | Throttle Actuator Current Range/Performance Problem |
| P2122 | APP Sensor A (TP Sensor D) Circuit Low Voltage |
| P2123 | APP Sensor A (Throttle Position Sensor D) Circuit High Voltage |
| P2127 | APP Sensor B (TP Sensor E) Circuit Low Voltage |
| P2128 | APP Sensor B (Throttle Position Sensor E) Circuit High Voltage |
| P2135 | TP Sensor A/B Incorrect Voltage Correlation |
| P2138 | APP Sensor A/B (TP Sensor D/E) Incorrect Voltage Correlation |
| P2176 | Throttle Actuator Control System Idle Position Not Learned |
| P2552 | ETCS Control Module Relay Malfunction |
| U0107 | Lost Communication With Throttle Actuator Control Module |
DTC INDEX
APP Sensor Signal Inspection
Note. This procedure checks the APP sensor in its fully closed position. In any other position, the APP sensor stores DTCs which are covered in other troubleshooting procedures. Check for Temporary DTCs or DTCs with the HDS before doing this procedure. If any DTCs are indicated, troubleshoot them first, then do this procedure. Press the accelerator pedal several times to check its operation. If it does not operate properly, check the pedal, the throttle cable, and the APP sensor individually. If you find a problem in one of them, replace the part(s) that caused the problem.
Scheme 52
- Connect the HDS to the data link connector (DLC) (A) located behind the driver's side of the front console.
- Turn the ignition switch ON (II).
- Make sure the HDS communicates with the vehicle and the ECM. If it doesn't, go to the DLC circuit troubleshooting (see «DLC CIRCUIT TROUBLESHOOTING»(ref-351945-S34342936082009122900000) ).
- Make sure the accelerator pedal is not pressed, then check the APP SENSOR in the DATA LIST with the HDS. If it is below 2%, the APP sensor is OK. If it is above 2%, adjust the throttle cable (see «THROTTLE CABLE ADJUSTMENT»(ref-221344-S11008582622006022400000) ), then go to step 5.
- Make sure the accelerator pedal is not pressed, then check the APP SENSOR in the DATA LIST with the HDS. If it is below 2%, the APP sensor is OK. If it is above 2%, update the ECM if it does not have the latest software, or substitute a known-good ECM (see «UPDATING THE ECM»(ref-221338-S06618208692006022400000) ), then go to step 6.
- Make sure the accelerator pedal is not pressed, then check the APP SENSOR in the DATA LIST with the HDS. If it is below 2%, the APP sensor is OK. If it is above 2%, replace the APP sensor (see «APP SENSOR REPLACEMENT»(ref-221340-S24350517622006022400000) ), then go to step 1 .
Scheme 53
- Remove the passenger's dashboard lower cover (see «PASSENGER'S DASHBOARD LOWER COVER REMOVAL/INSTALLATION»(ref-221367-S01244536242006022400000) ).
- Push the tab (A), and disconnect the throttle actuator control module 16P connector (B).
- Remove the nuts (C), and the throttle actuator control module (D).
- Install the control module in the reverse order of removal.